bi-amping dali speakers

i just picked up a pair of dali euphonia m4's. i am bi-amping them with two 110wpc linn amps. the linn speakers that they replaced sounded much better with 2 amps. the dali's sound a little better. it's pretty subtle, but the mid & upper freq's are improved.

i'm wondering if it's because of more power to the speaker, which could be accomplished with a bigger stereo amp, or is it the separate power supply, cable, a/c cord, etc, etc.

i'd like to get different electronics, but would rather just have a single stereo amp.

anyone have any experience or opinions?

i've been thinking about rowland ss or mcintosh tubes for something different.